Chiropractor Heath Lenox used runner Roger Pleasant and his companies to persuade auto accident victims to come to Lenox’s clinic in Little Rock. Lenox stopped using Pleasant and his companies on June 25. | (Photo by Mark Friedman)

A combination of regulation and enforcement has begun to chip away at the lucrative business plan that has generated so many complaints that the Arkansas State Board of Chiropractic Examiners had to add another full-time staff position.